ImageOptim is a very easy to use optimization utility designed to work with PNG and JPEG formats.
Optimization makes files smaller (in terms of disk space) by finding optimal compression parameters and by removing unneccessary information, like file comments, EXIF tags and color profiles.
What's New in This Release: [ read full changelog ]
· Added French localization.
· Added modified version of optipng that clears dirty alpha transparency (RGB components of fully transparent pixels).
· Added Gifsicle for optimisation of animated GIF files (use PNG instead of static GIFs!).
· Added tools menu for quick disabling/enabling of tools used.
Universal Binary 
